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          <span data-v-25ba6db2>2018 - </span>
          2022
        </a></span></div></div> <div data-v-130b300a><main class="page"><section><div class="page-title"><h1 class="title">PySide2介绍</h1> <div data-v-f875f3fc><!----> <i class="iconfont reco-date" data-v-f875f3fc><span data-v-f875f3fc>2022/5/24</span></i> <!----> <i class="tags iconfont reco-tag" data-v-f875f3fc><span class="tag-item" data-v-f875f3fc>python</span><span class="tag-item" data-v-f875f3fc>PySide2</span><span class="tag-item" data-v-f875f3fc>qt</span></i></div></div> <div class="theme-reco-content content__default"><div id="boxx" data-v-f4ca0dac><div data-v-f4ca0dac><p v-if="true" class="custom-block-title" data-v-f4ca0dac></p> <p v-if="true" data-v-f4ca0dac></p></div></div> <h2 id="pyside2、pyqt5介绍"><a href="#pyside2、pyqt5介绍" class="header-anchor">#</a> PySide2、PyQt5介绍</h2> <p>PySide2、PyQt5 都是基于著名的 Qt 库。</p> <p>Qt库里面有非常强大的图形界面开发库，但是Qt库是C++语言开发的，PySide2、PyQt5可以让我们通过Python语言使用Qt。</p> <p>PyQt5 出现较早, 是（Riverbank Computing这个公司开发的）; PySide2是2018年7月python官方才发布的, 所以PyQt5比PySide2更出名, 但PySide2会更有前途, 因为它是官方发布的, 后期会越来越好。</p> <p>PySide2和PyQt5, 差别很小, 它们的调用接口几乎一模一样,如果你的程序是PyQt5开发的，通常只要略作修改，比如把导入的名字从 PyQt5 换成 PySide2 就行了。反之亦然。</p> <h2 id="安装-pyside2"><a href="#安装-pyside2" class="header-anchor">#</a> 安装 PySide2</h2> <div class="language-shell line-numbers-mode"><pre class="language-shell"><code>pip <span class="token function">install</span> pyside2
</code></pre> <div class="line-numbers-wrapper"><span class="line-number">1</span><br></div></div><div class="custom-block danger"><p class="title">建议</p><p>建议：如果你的程序要发布给客户使用，建议使用32位的Python解释器，这样打包发布的exe程序可以兼容32位的Windows</p></div><h2 id="入门案例"><a href="#入门案例" class="header-anchor">#</a> 入门案例</h2> <div class="language-py line-numbers-mode"><pre class="language-py"><code><span class="token keyword">from</span> PySide2<span class="token punctuation">.</span>QtWidgets <span class="token keyword">import</span> QApplication<span class="token punctuation">,</span> QMainWindow<span class="token punctuation">,</span> QPushButton<span class="token punctuation">,</span> QPlainTextEdit<span class="token punctuation">,</span> QLabel

<span class="token comment"># 创建一个应用程序, 提供整个程序的底层管理, 进行初始化和程序入口参数的处理</span>
app <span class="token operator">=</span> QApplication<span class="token punctuation">(</span><span class="token punctuation">[</span><span class="token punctuation">]</span><span class="token punctuation">)</span>

<span class="token comment"># 创建一个主窗口的控件</span>
window <span class="token operator">=</span> QMainWindow<span class="token punctuation">(</span><span class="token punctuation">)</span>
<span class="token comment"># 给这个窗口设置一个标记名称</span>
window<span class="token punctuation">.</span>setWindowTitle<span class="token punctuation">(</span><span class="token string">'薪资统计'</span><span class="token punctuation">)</span>
<span class="token comment"># 设置窗口大小,宽度500px, 高度400px, 高度不包含标题栏高度</span>
window<span class="token punctuation">.</span>resize<span class="token punctuation">(</span><span class="token number">500</span><span class="token punctuation">,</span> <span class="token number">400</span><span class="token punctuation">)</span>
<span class="token comment"># 主窗口默认显示位置, 相对屏幕的左上角 X横坐标300像素,Y纵坐标310像素这个位置。</span>
window<span class="token punctuation">.</span>move<span class="token punctuation">(</span><span class="token number">300</span><span class="token punctuation">,</span> <span class="token number">310</span><span class="token punctuation">)</span>

<span class="token comment"># 创建一个文本控件(在window上创建)</span>
textEdit <span class="token operator">=</span> QPlainTextEdit<span class="token punctuation">(</span>window<span class="token punctuation">)</span>
<span class="token comment">#   设置提示文本</span>
textEdit<span class="token punctuation">.</span>setPlaceholderText<span class="token punctuation">(</span><span class="token string">&quot;请输入薪资表&quot;</span><span class="token punctuation">)</span>
<span class="token comment"># 相对于父窗口,X横坐标10像素,Y纵坐标25像素(标题栏不算高度),move针对的位置,是针对父窗口的位置</span>
textEdit<span class="token punctuation">.</span>move<span class="token punctuation">(</span><span class="token number">10</span><span class="token punctuation">,</span> <span class="token number">25</span><span class="token punctuation">)</span>
<span class="token comment"># 设置宽度300, 高度350个像素</span>
textEdit<span class="token punctuation">.</span>resize<span class="token punctuation">(</span><span class="token number">300</span><span class="token punctuation">,</span> <span class="token number">350</span><span class="token punctuation">)</span>

<span class="token comment"># 创建一个按钮控件(在window控件上创建)</span>
button <span class="token operator">=</span> QPushButton<span class="token punctuation">(</span>window<span class="token punctuation">)</span>
button<span class="token punctuation">.</span>setText<span class="token punctuation">(</span><span class="token string">&quot;统计&quot;</span><span class="token punctuation">)</span>  <span class="token comment"># 设置按钮的内容</span>
button<span class="token punctuation">.</span>resize<span class="token punctuation">(</span><span class="token number">90</span><span class="token punctuation">,</span> <span class="token number">20</span><span class="token punctuation">)</span>  <span class="token comment"># 设置按钮的尺寸,宽度90px, 高度20px</span>
button<span class="token punctuation">.</span>move<span class="token punctuation">(</span><span class="token number">380</span><span class="token punctuation">,</span> <span class="token number">80</span><span class="token punctuation">)</span>  <span class="token comment"># 设置按钮的位置, 指的是按钮左上角到*父窗口*的位置, 距左380px,距上80px(不包含标题栏)</span>
button<span class="token punctuation">.</span>setStyleSheet<span class="token punctuation">(</span><span class="token string">'background-color:red;font-size:16px;'</span><span class="token punctuation">)</span>  <span class="token comment"># 设置按钮的背景色和字体尺寸</span>

<span class="token comment"># 创建一个label控件(在window上创建)</span>
label <span class="token operator">=</span> QLabel<span class="token punctuation">(</span>window<span class="token punctuation">)</span>
<span class="token comment"># 设置标签内容</span>
label<span class="token punctuation">.</span>setText<span class="token punctuation">(</span><span class="token string">'标签'</span><span class="token punctuation">)</span>
label<span class="token punctuation">.</span>move<span class="token punctuation">(</span><span class="token number">380</span><span class="token punctuation">,</span> <span class="token number">140</span><span class="token punctuation">)</span>
label<span class="token punctuation">.</span>setStyleSheet<span class="token punctuation">(</span><span class="token string">'background-color:red;font-size:16px;'</span><span class="token punctuation">)</span>  <span class="token comment"># 设置按钮的背景色和字体尺寸</span>

<span class="token comment"># 放在主窗口的控件，要能全部显示在界面上，必须加上下面这行代码</span>
window<span class="token punctuation">.</span>show<span class="token punctuation">(</span><span class="token punctuation">)</span>
<span class="token comment"># app.exec_() 消息处理, 进入QApplication的事件处理循环，接收用户的输入事件（），并且分配给相应的对象去处理。</span>
<span class="token triple-quoted-string string">&quot;&quot;&quot;
app.exec_()是一个消息循环程序,没有这个程序就会闪退,有了这个, 程序进入QApplication的事件处理循环，
接收用户的输入事件（），并且分配给相应的对象去处理会一直存在
&quot;&quot;&quot;</span>
app<span class="token punctuation">.</span>exec_<span class="token punctuation">(</span><span class="token punctuation">)</span>
</code></pre> <div class="line-numbers-wrapper"><span class="line-number">1</span><br><span class="line-number">2</span><br><span class="line-number">3</span><br><span class="line-number">4</span><br><span class="line-number">5</span><br><span class="line-number">6</span><br><span class="line-number">7</span><br><span class="line-number">8</span><br><span class="line-number">9</span><br><span class="line-number">10</span><br><span class="line-number">11</span><br><span class="line-number">12</span><br><span class="line-number">13</span><br><span class="line-number">14</span><br><span class="line-number">15</span><br><span class="line-number">16</span><br><span class="line-number">17</span><br><span class="line-number">18</span><br><span class="line-number">19</span><br><span class="line-number">20</span><br><span class="line-number">21</span><br><span class="line-number">22</span><br><span class="line-number">23</span><br><span class="line-number">24</span><br><span class="line-number">25</span><br><span class="line-number">26</span><br><span class="line-number">27</span><br><span class="line-number">28</span><br><span class="line-number">29</span><br><span class="line-number">30</span><br><span class="line-number">31</span><br><span class="line-number">32</span><br><span class="line-number">33</span><br><span class="line-number">34</span><br><span class="line-number">35</span><br><span class="line-number">36</span><br><span class="line-number">37</span><br><span class="line-number">38</span><br><span class="line-number">39</span><br><span class="line-number">40</span><br><span class="line-number">41</span><br><span class="line-number">42</span><br><span class="line-number">43</span><br><span class="line-number">44</span><br><span class="line-number">45</span><br></div></div><h2 id="界面动作处理-signal和slot"><a href="#界面动作处理-signal和slot" class="header-anchor">#</a> 界面动作处理(signal和slot)</h2> <div class="custom-block danger"><p class="title">注意</p><ol><li>在QT系统中, 当界面上一个控件被操作时, 比如被点击, 被输入文本, 被鼠标拖拽等, 就会发出信号(英文叫signal);
就是表明一个事件(比如被点击, 被输入文本)发生了; 处理这个信号的函数, 专业名词叫做slot;</li> <li><code>button.clicked.connect(handleCalc)</code>, 解释就是, 把button按钮被点击(clicked)的信号(signal), 连接(connect)到了handleCale函数这样一个slot上</li> <li>直白点就是, 让handleCalc函数 来处理button被点击的操作</li></ol></div><h3 id="源码写法"><a href="#源码写法" class="header-anchor">#</a> 源码写法</h3> <div class="language-py line-numbers-mode"><pre class="language-py"><code><span class="token keyword">from</span> PySide2<span class="token punctuation">.</span>QtWidgets <span class="token keyword">import</span> QApplication<span class="token punctuation">,</span> QMainWindow<span class="token punctuation">,</span> QPushButton<span class="token punctuation">,</span> QPlainTextEdit<span class="token punctuation">,</span> QLabel<span class="token punctuation">,</span> QMessageBox


<span class="token keyword">def</span> <span class="token function">handleCalc</span><span class="token punctuation">(</span><span class="token punctuation">)</span><span class="token punctuation">:</span>
    <span class="token comment"># 获取文本</span>
    info <span class="token operator">=</span> textEdit<span class="token punctuation">.</span>toPlainText<span class="token punctuation">(</span><span class="token punctuation">)</span>

    <span class="token comment"># 薪资20000 以上 和 以下 的人员名单</span>
    salary_above_20k <span class="token operator">=</span> <span class="token string">''</span>
    salary_below_20k <span class="token operator">=</span> <span class="token string">''</span>
    <span class="token keyword">for</span> line <span class="token keyword">in</span> info<span class="token punctuation">.</span>splitlines<span class="token punctuation">(</span><span class="token punctuation">)</span><span class="token punctuation">:</span>
        <span class="token keyword">if</span> <span class="token keyword">not</span> line<span class="token punctuation">.</span>strip<span class="token punctuation">(</span><span class="token punctuation">)</span><span class="token punctuation">:</span>
            <span class="token keyword">continue</span>
        parts <span class="token operator">=</span> line<span class="token punctuation">.</span>split<span class="token punctuation">(</span><span class="token string">' '</span><span class="token punctuation">)</span>
        <span class="token comment"># 去掉列表中的空字符串内容</span>
        parts <span class="token operator">=</span> <span class="token punctuation">[</span>p <span class="token keyword">for</span> p <span class="token keyword">in</span> parts <span class="token keyword">if</span> p<span class="token punctuation">]</span>
        name<span class="token punctuation">,</span> salary<span class="token punctuation">,</span> age <span class="token operator">=</span> parts
        <span class="token keyword">if</span> <span class="token builtin">int</span><span class="token punctuation">(</span>salary<span class="token punctuation">)</span> <span class="token operator">&gt;=</span> <span class="token number">20000</span><span class="token punctuation">:</span>
            salary_above_20k <span class="token operator">+=</span> name <span class="token operator">+</span> <span class="token string">'\n'</span>
        <span class="token keyword">else</span><span class="token punctuation">:</span>
            salary_below_20k <span class="token operator">+=</span> name <span class="token operator">+</span> <span class="token string">'\n'</span>

    <span class="token comment"># 弹出通知的对话框</span>
    QMessageBox<span class="token punctuation">.</span>about<span class="token punctuation">(</span>window<span class="token punctuation">,</span>
                      <span class="token string">'统计结果'</span><span class="token punctuation">,</span>
                      <span class="token string-interpolation"><span class="token string">f'''薪资20000 以上的有：\n</span><span class="token interpolation"><span class="token punctuation">{</span>salary_above_20k<span class="token punctuation">}</span></span><span class="token string">
                    \n薪资20000 以下的有：\n</span><span class="token interpolation"><span class="token punctuation">{</span>salary_below_20k<span class="token punctuation">}</span></span><span class="token string">'''</span></span>
                      <span class="token punctuation">)</span>


<span class="token comment"># 创建一个应用程序, 提供整个程序的底层管理, 进行初始化和程序入口参数的处理</span>
app <span class="token operator">=</span> QApplication<span class="token punctuation">(</span><span class="token punctuation">[</span><span class="token punctuation">]</span><span class="token punctuation">)</span>

<span class="token comment"># 创建一个主窗口的控件</span>
window <span class="token operator">=</span> QMainWindow<span class="token punctuation">(</span><span class="token punctuation">)</span>
<span class="token comment"># 给这个窗口设置一个标记名称</span>
window<span class="token punctuation">.</span>setWindowTitle<span class="token punctuation">(</span><span class="token string">'薪资统计'</span><span class="token punctuation">)</span>
<span class="token comment"># 设置窗口大小,宽度500px, 高度400px, 高度不包含标题栏高度</span>
window<span class="token punctuation">.</span>resize<span class="token punctuation">(</span><span class="token number">500</span><span class="token punctuation">,</span> <span class="token number">400</span><span class="token punctuation">)</span>
<span class="token comment"># 主窗口默认显示位置, 相对屏幕的左上角 X横坐标300像素,Y纵坐标310像素这个位置。</span>
window<span class="token punctuation">.</span>move<span class="token punctuation">(</span><span class="token number">300</span><span class="token punctuation">,</span> <span class="token number">310</span><span class="token punctuation">)</span>

<span class="token comment"># 创建一个文本控件(在window上创建)</span>
textEdit <span class="token operator">=</span> QPlainTextEdit<span class="token punctuation">(</span>window<span class="token punctuation">)</span>
<span class="token comment">#   设置提示文本</span>
textEdit<span class="token punctuation">.</span>setPlaceholderText<span class="token punctuation">(</span><span class="token string">&quot;请输入薪资表&quot;</span><span class="token punctuation">)</span>
<span class="token comment"># 相对于父窗口,X横坐标10像素,Y纵坐标25像素(标题栏不算高度),move针对的位置,是针对父窗口的位置</span>
textEdit<span class="token punctuation">.</span>move<span class="token punctuation">(</span><span class="token number">10</span><span class="token punctuation">,</span> <span class="token number">25</span><span class="token punctuation">)</span>
<span class="token comment"># 设置宽度300, 高度350个像素</span>
textEdit<span class="token punctuation">.</span>resize<span class="token punctuation">(</span><span class="token number">300</span><span class="token punctuation">,</span> <span class="token number">350</span><span class="token punctuation">)</span>

<span class="token comment"># 创建一个按钮控件(在window控件上创建)</span>
button <span class="token operator">=</span> QPushButton<span class="token punctuation">(</span>window<span class="token punctuation">)</span>
button<span class="token punctuation">.</span>setText<span class="token punctuation">(</span><span class="token string">&quot;统计&quot;</span><span class="token punctuation">)</span>  <span class="token comment"># 设置按钮的内容</span>
button<span class="token punctuation">.</span>resize<span class="token punctuation">(</span><span class="token number">90</span><span class="token punctuation">,</span> <span class="token number">20</span><span class="token punctuation">)</span>  <span class="token comment"># 设置按钮的尺寸,宽度90px, 高度20px</span>
button<span class="token punctuation">.</span>move<span class="token punctuation">(</span><span class="token number">380</span><span class="token punctuation">,</span> <span class="token number">80</span><span class="token punctuation">)</span>  <span class="token comment"># 设置按钮的位置, 指的是按钮左上角到*父窗口*的位置, 距左380px,距上80px(不包含标题栏)</span>
button<span class="token punctuation">.</span>setStyleSheet<span class="token punctuation">(</span><span class="token string">'background-color:red;font-size:16px;'</span><span class="token punctuation">)</span>  <span class="token comment"># 设置按钮的背景色和字体尺寸</span>

<span class="token triple-quoted-string string">&quot;&quot;&quot;
1. 在QT系统中, 当界面上一个控件被操作时, 比如被点击, 被输入文本, 被鼠标拖拽等, 就会发出信号(英文叫signal);
就是表明一个事件(比如被点击, 被输入文本)发生了; 处理这个信号的函数, 专业名词叫做slot;
2. 下面这行代码, 解释就是, 把button被点击(clicked)的信号(signal), 连接(connect)到了handleCale这样一个slot上
3. 直白点就是, 让handleCalc函数 来处理button被点击的操作
&quot;&quot;&quot;</span>
button<span class="token punctuation">.</span>clicked<span class="token punctuation">.</span>connect<span class="token punctuation">(</span>handleCalc<span class="token punctuation">)</span>

<span class="token comment"># 创建一个label控件(在window上创建)</span>
label <span class="token operator">=</span> QLabel<span class="token punctuation">(</span>window<span class="token punctuation">)</span>
<span class="token comment"># 设置标签内容</span>
label<span class="token punctuation">.</span>setText<span class="token punctuation">(</span><span class="token string">'标签'</span><span class="token punctuation">)</span>
label<span class="token punctuation">.</span>move<span class="token punctuation">(</span><span class="token number">380</span><span class="token punctuation">,</span> <span class="token number">140</span><span class="token punctuation">)</span>
label<span class="token punctuation">.</span>setStyleSheet<span class="token punctuation">(</span><span class="token string">'background-color:red;font-size:16px;'</span><span class="token punctuation">)</span>  <span class="token comment"># 设置按钮的背景色和字体尺寸</span>

<span class="token comment"># 最顶层控件执行show方法, 就是把控件窗体展现出来</span>
window<span class="token punctuation">.</span>show<span class="token punctuation">(</span><span class="token punctuation">)</span>
<span class="token triple-quoted-string string">&quot;&quot;&quot;
app.exec_()是一个消息循环程序,没有这个程序就会闪退,有了这个, 程序进入QApplication的事件处理循环，
接收用户的输入事件（），并且分配给相应的对象去处理会一直存在
&quot;&quot;&quot;</span>
app<span class="token punctuation">.</span>exec_<span class="token punctuation">(</span><span class="token punctuation">)</span>
</code></pre> <div class="line-numbers-wrapper"><span class="line-number">1</span><br><span class="line-number">2</span><br><span class="line-number">3</span><br><span class="line-number">4</span><br><span class="line-number">5</span><br><span class="line-number">6</span><br><span class="line-number">7</span><br><span class="line-number">8</span><br><span class="line-number">9</span><br><span class="line-number">10</span><br><span class="line-number">11</span><br><span class="line-number">12</span><br><span class="line-number">13</span><br><span class="line-number">14</span><br><span class="line-number">15</span><br><span class="line-number">16</span><br><span class="line-number">17</span><br><span class="line-number">18</span><br><span class="line-number">19</span><br><span class="line-number">20</span><br><span class="line-number">21</span><br><span class="line-number">22</span><br><span class="line-number">23</span><br><span class="line-number">24</span><br><span class="line-number">25</span><br><span class="line-number">26</span><br><span class="line-number">27</span><br><span class="line-number">28</span><br><span class="line-number">29</span><br><span class="line-number">30</span><br><span class="line-number">31</span><br><span class="line-number">32</span><br><span class="line-number">33</span><br><span class="line-number">34</span><br><span class="line-number">35</span><br><span class="line-number">36</span><br><span class="line-number">37</span><br><span class="line-number">38</span><br><span class="line-number">39</span><br><span class="line-number">40</span><br><span class="line-number">41</span><br><span class="line-number">42</span><br><span class="line-number">43</span><br><span class="line-number">44</span><br><span class="line-number">45</span><br><span class="line-number">46</span><br><span class="line-number">47</span><br><span class="line-number">48</span><br><span class="line-number">49</span><br><span class="line-number">50</span><br><span class="line-number">51</span><br><span class="line-number">52</span><br><span class="line-number">53</span><br><span class="line-number">54</span><br><span class="line-number">55</span><br><span class="line-number">56</span><br><span class="line-number">57</span><br><span class="line-number">58</span><br><span class="line-number">59</span><br><span class="line-number">60</span><br><span class="line-number">61</span><br><span class="line-number">62</span><br><span class="line-number">63</span><br><span class="line-number">64</span><br><span class="line-number">65</span><br><span class="line-number">66</span><br><span class="line-number">67</span><br><span class="line-number">68</span><br><span class="line-number">69</span><br><span class="line-number">70</span><br><span class="line-number">71</span><br><span class="line-number">72</span><br><span class="line-number">73</span><br><span class="line-number">74</span><br><span class="line-number">75</span><br><span class="line-number">76</span><br><span class="line-number">77</span><br><span class="line-number">78</span><br><span class="line-number">79</span><br><span class="line-number">80</span><br></div></div><h3 id="面向对象写法"><a href="#面向对象写法" class="header-anchor">#</a> 面向对象写法</h3> <div class="language-py line-numbers-mode"><pre class="language-py"><code><span class="token keyword">from</span> PySide2<span class="token punctuation">.</span>QtWidgets <span class="token keyword">import</span> QApplication<span class="token punctuation">,</span> QMainWindow<span class="token punctuation">,</span> QPushButton<span class="token punctuation">,</span> QPlainTextEdit<span class="token punctuation">,</span> QLabel<span class="token punctuation">,</span> QMessageBox


<span class="token comment"># Window类继承于QWidget</span>
<span class="token keyword">class</span> <span class="token class-name">Window</span><span class="token punctuation">(</span>QMainWindow<span class="token punctuation">)</span><span class="token punctuation">:</span>
    <span class="token keyword">def</span> <span class="token function">__init__</span><span class="token punctuation">(</span>self<span class="token punctuation">)</span><span class="token punctuation">:</span>
        <span class="token builtin">super</span><span class="token punctuation">(</span><span class="token punctuation">)</span><span class="token punctuation">.</span>__init__<span class="token punctuation">(</span><span class="token punctuation">)</span>  <span class="token comment"># 调用父类QMainWindow中的init方法</span>
        <span class="token comment"># # 给这个窗口设置一个标记名称</span>
        self<span class="token punctuation">.</span>textEdit <span class="token operator">=</span> <span class="token boolean">None</span>
        self<span class="token punctuation">.</span>setWindowTitle<span class="token punctuation">(</span><span class="token string">'薪资统计'</span><span class="token punctuation">)</span>
        self<span class="token punctuation">.</span>setWindowTitle<span class="token punctuation">(</span><span class="token string">'薪资统计'</span><span class="token punctuation">)</span>
        <span class="token comment"># 设置窗口大小,宽度500px, 高度400px, 高度不包含标题栏高度</span>
        self<span class="token punctuation">.</span>resize<span class="token punctuation">(</span><span class="token number">500</span><span class="token punctuation">,</span> <span class="token number">400</span><span class="token punctuation">)</span>
        <span class="token comment"># 主窗口默认显示位置, 相对屏幕的左上角 X横坐标300像素,Y纵坐标310像素这个位置。</span>
        self<span class="token punctuation">.</span>move<span class="token punctuation">(</span><span class="token number">300</span><span class="token punctuation">,</span> <span class="token number">310</span><span class="token punctuation">)</span>
        self<span class="token punctuation">.</span>func_list<span class="token punctuation">(</span><span class="token punctuation">)</span>  <span class="token comment"># 调用自身的方法</span>

    <span class="token comment"># 这里是程序调用的函数, 这样代码就比较整洁清晰了</span>
    <span class="token keyword">def</span> <span class="token function">func_list</span><span class="token punctuation">(</span>self<span class="token punctuation">)</span><span class="token punctuation">:</span>
        self<span class="token punctuation">.</span>func<span class="token punctuation">(</span><span class="token punctuation">)</span>
        self<span class="token punctuation">.</span>func1<span class="token punctuation">(</span><span class="token punctuation">)</span>
        self<span class="token punctuation">.</span>func2<span class="token punctuation">(</span><span class="token punctuation">)</span>

    <span class="token comment"># 创建一个文本控件</span>
    <span class="token keyword">def</span> <span class="token function">func</span><span class="token punctuation">(</span>self<span class="token punctuation">)</span><span class="token punctuation">:</span>
        <span class="token comment"># 创建一个文本控件(在window上创建)</span>
        self<span class="token punctuation">.</span>textEdit <span class="token operator">=</span> QPlainTextEdit<span class="token punctuation">(</span>self<span class="token punctuation">)</span>
        <span class="token comment">#   设置提示文本</span>
        self<span class="token punctuation">.</span>textEdit<span class="token punctuation">.</span>setPlaceholderText<span class="token punctuation">(</span><span class="token string">&quot;请输入薪资表&quot;</span><span class="token punctuation">)</span>
        <span class="token comment"># 相对于父窗口,X横坐标10像素,Y纵坐标25像素(标题栏不算高度),move针对的位置,是针对父窗口的位置</span>
        self<span class="token punctuation">.</span>textEdit<span class="token punctuation">.</span>move<span class="token punctuation">(</span><span class="token number">10</span><span class="token punctuation">,</span> <span class="token number">25</span><span class="token punctuation">)</span>
        <span class="token comment"># 设置宽度300, 高度350个像素</span>
        self<span class="token punctuation">.</span>textEdit<span class="token punctuation">.</span>resize<span class="token punctuation">(</span><span class="token number">300</span><span class="token punctuation">,</span> <span class="token number">350</span><span class="token punctuation">)</span>

    <span class="token comment"># 创建一个按钮控件</span>
    <span class="token keyword">def</span> <span class="token function">func1</span><span class="token punctuation">(</span>self<span class="token punctuation">)</span><span class="token punctuation">:</span>
        <span class="token comment"># 创建一个按钮控件(在window控件上创建)</span>
        button <span class="token operator">=</span> QPushButton<span class="token punctuation">(</span>self<span class="token punctuation">)</span>
        button<span class="token punctuation">.</span>setText<span class="token punctuation">(</span><span class="token string">&quot;统计&quot;</span><span class="token punctuation">)</span>  <span class="token comment"># 设置按钮的内容</span>
        button<span class="token punctuation">.</span>resize<span class="token punctuation">(</span><span class="token number">90</span><span class="token punctuation">,</span> <span class="token number">20</span><span class="token punctuation">)</span>  <span class="token comment"># 设置按钮的尺寸,宽度90px, 高度20px</span>
        <span class="token comment"># 设置按钮的位置, 指的是按钮左上角到*父窗口*的位置, 距左380px,距上80px(不包含标题栏)</span>
        button<span class="token punctuation">.</span>move<span class="token punctuation">(</span><span class="token number">380</span><span class="token punctuation">,</span> <span class="token number">80</span><span class="token punctuation">)</span>  
        button<span class="token punctuation">.</span>setStyleSheet<span class="token punctuation">(</span><span class="token string">'background-color:red;font-size:16px;'</span><span class="token punctuation">)</span>  <span class="token comment"># 设置按钮的背景色和字体尺寸</span>
        button<span class="token punctuation">.</span>clicked<span class="token punctuation">.</span>connect<span class="token punctuation">(</span>self<span class="token punctuation">.</span>handleCalc<span class="token punctuation">)</span>

    <span class="token comment"># 创建一个label控件</span>
    <span class="token keyword">def</span> <span class="token function">func2</span><span class="token punctuation">(</span>self<span class="token punctuation">)</span><span class="token punctuation">:</span>
        label <span class="token operator">=</span> QLabel<span class="token punctuation">(</span>self<span class="token punctuation">)</span>
        <span class="token comment"># 设置标签内容</span>
        label<span class="token punctuation">.</span>setText<span class="token punctuation">(</span><span class="token string">'标签'</span><span class="token punctuation">)</span>
        label<span class="token punctuation">.</span>move<span class="token punctuation">(</span><span class="token number">380</span><span class="token punctuation">,</span> <span class="token number">140</span><span class="token punctuation">)</span>
        label<span class="token punctuation">.</span>setStyleSheet<span class="token punctuation">(</span><span class="token string">'background-color:red;font-size:16px;'</span><span class="token punctuation">)</span>  <span class="token comment"># 设置按钮的背景色和字体尺寸</span>

    <span class="token keyword">def</span> <span class="token function">handleCalc</span><span class="token punctuation">(</span>self<span class="token punctuation">)</span><span class="token punctuation">:</span>
        <span class="token comment"># 获取文本</span>
        info <span class="token operator">=</span> self<span class="token punctuation">.</span>textEdit<span class="token punctuation">.</span>toPlainText<span class="token punctuation">(</span><span class="token punctuation">)</span>

        <span class="token comment"># 薪资20000 以上 和 以下 的人员名单</span>
        salary_above_20k <span class="token operator">=</span> <span class="token string">''</span>
        salary_below_20k <span class="token operator">=</span> <span class="token string">''</span>
        <span class="token keyword">for</span> line <span class="token keyword">in</span> info<span class="token punctuation">.</span>splitlines<span class="token punctuation">(</span><span class="token punctuation">)</span><span class="token punctuation">:</span>
            <span class="token keyword">if</span> <span class="token keyword">not</span> line<span class="token punctuation">.</span>strip<span class="token punctuation">(</span><span class="token punctuation">)</span><span class="token punctuation">:</span>
                <span class="token keyword">continue</span>
            parts <span class="token operator">=</span> line<span class="token punctuation">.</span>split<span class="token punctuation">(</span><span class="token string">' '</span><span class="token punctuation">)</span>
            <span class="token comment"># 去掉列表中的空字符串内容</span>
            parts <span class="token operator">=</span> <span class="token punctuation">[</span>p <span class="token keyword">for</span> p <span class="token keyword">in</span> parts <span class="token keyword">if</span> p<span class="token punctuation">]</span>
            name<span class="token punctuation">,</span> salary<span class="token punctuation">,</span> age <span class="token operator">=</span> parts
            <span class="token keyword">if</span> <span class="token builtin">int</span><span class="token punctuation">(</span>salary<span class="token punctuation">)</span> <span class="token operator">&gt;=</span> <span class="token number">20000</span><span class="token punctuation">:</span>
                salary_above_20k <span class="token operator">+=</span> name <span class="token operator">+</span> <span class="token string">'\n'</span>
            <span class="token keyword">else</span><span class="token punctuation">:</span>
                salary_below_20k <span class="token operator">+=</span> name <span class="token operator">+</span> <span class="token string">'\n'</span>

        <span class="token comment"># 弹出通知的对话框</span>
        QMessageBox<span class="token punctuation">.</span>about<span class="token punctuation">(</span>window<span class="token punctuation">,</span>
                          <span class="token string">'统计结果'</span><span class="token punctuation">,</span>
                          <span class="token string-interpolation"><span class="token string">f'''薪资20000 以上的有：\n</span><span class="token interpolation"><span class="token punctuation">{</span>salary_above_20k<span class="token punctuation">}</span></span><span class="token string">
                            \n薪资20000 以下的有：\n</span><span class="token interpolation"><span class="token punctuation">{</span>salary_below_20k<span class="token punctuation">}</span></span><span class="token string">'''</span></span>
                          <span class="token punctuation">)</span>


<span class="token keyword">if</span> __name__ <span class="token operator">==</span> <span class="token string">'__main__'</span><span class="token punctuation">:</span>
    <span class="token comment"># 创建一个应用程序, 提供整个程序的底层管理, 进行初始化和程序入口参数的处理</span>
    app <span class="token operator">=</span> QApplication<span class="token punctuation">(</span><span class="token punctuation">[</span><span class="token punctuation">]</span><span class="token punctuation">)</span>
    window <span class="token operator">=</span> Window<span class="token punctuation">(</span><span class="token punctuation">)</span>  <span class="token comment"># 调用window类,操作空间</span>
    <span class="token comment"># 最顶层控件执行show方法, 就是把控件窗体展现出来</span>
    window<span class="token punctuation">.</span>show<span class="token punctuation">(</span><span class="token punctuation">)</span>
    <span class="token triple-quoted-string string">&quot;&quot;&quot;
    app.exec_()是一个消息循环程序,没有这个程序就会闪退,有了这个, 程序进入QApplication的事件处理循环，
    接收用户的输入事件（），并且分配给相应的对象去处理会一直存在
    &quot;&quot;&quot;</span>
    app<span class="token punctuation">.</span>exec_<span class="token punctuation">(</span><span class="token punctuation">)</span>
</code></pre> <div class="line-numbers-wrapper"><span class="line-number">1</span><br><span class="line-number">2</span><br><span class="line-number">3</span><br><span class="line-number">4</span><br><span class="line-number">5</span><br><span class="line-number">6</span><br><span class="line-number">7</span><br><span class="line-number">8</span><br><span class="line-number">9</span><br><span class="line-number">10</span><br><span class="line-number">11</span><br><span class="line-number">12</span><br><span class="line-number">13</span><br><span class="line-number">14</span><br><span class="line-number">15</span><br><span class="line-number">16</span><br><span class="line-number">17</span><br><span class="line-number">18</span><br><span class="line-number">19</span><br><span class="line-number">20</span><br><span class="line-number">21</span><br><span class="line-number">22</span><br><span class="line-number">23</span><br><span class="line-number">24</span><br><span class="line-number">25</span><br><span class="line-number">26</span><br><span class="line-number">27</span><br><span class="line-number">28</span><br><span class="line-number">29</span><br><span class="line-number">30</span><br><span class="line-number">31</span><br><span class="line-number">32</span><br><span class="line-number">33</span><br><span class="line-number">34</span><br><span class="line-number">35</span><br><span class="line-number">36</span><br><span class="line-number">37</span><br><span class="line-number">38</span><br><span class="line-number">39</span><br><span class="line-number">40</span><br><span class="line-number">41</span><br><span class="line-number">42</span><br><span class="line-number">43</span><br><span class="line-number">44</span><br><span class="line-number">45</span><br><span class="line-number">46</span><br><span class="line-number">47</span><br><span class="line-number">48</span><br><span class="line-number">49</span><br><span class="line-number">50</span><br><span class="line-number">51</span><br><span class="line-number">52</span><br><span class="line-number">53</span><br><span class="line-number">54</span><br><span class="line-number">55</span><br><span class="line-number">56</span><br><span class="line-number">57</span><br><span class="line-number">58</span><br><span class="line-number">59</span><br><span class="line-number">60</span><br><span class="line-number">61</span><br><span class="line-number">62</span><br><span class="line-number">63</span><br><span class="line-number">64</span><br><span class="line-number">65</span><br><span class="line-number">66</span><br><span class="line-number">67</span><br><span class="line-number">68</span><br><span class="line-number">69</span><br><span class="line-number">70</span><br><span class="line-number">71</span><br><span class="line-number">72</span><br><span class="line-number">73</span><br><span class="line-number">74</span><br><span class="line-number">75</span><br><span class="line-number">76</span><br><span class="line-number">77</span><br><span class="line-number">78</span><br><span class="line-number">79</span><br><span class="line-number">80</span><br><span class="line-number">81</span><br><span class="line-number">82</span><br><span class="line-number">83</span><br><span class="line-number">84</span><br><span class="line-number">85</span><br><span class="line-number">86</span><br><span class="line-number">87</span><br><span class="line-number">88</span><br><span class="line-number">89</span><br><span class="line-number">90</span><br><span class="line-number">91</span><br></div></div></div></section> <footer class="page-edit"><!----> <div class="last-updated"><span class="prefix">Last Updated: </span> <span class="time">2022/5/24 23:19:23</span></div></footer> <div class="page-nav"><p class="inner"><span class="prev"><a href="/share/docs/gui/QObject.html" class="prev">
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